#include <stdio.h>
void Swap(int* p, int* o)
{
	int tmp = 0;
	tmp = *p;
	*p = *o;
	*o= tmp;
}
int main() {
	int a = 3;
	int b = 5;
	Swap(&a, &b);
	printf("%d,%d", a, b);
	return 0;

}